Spherical polyamide and process for preparing the same

Details Spherical polyamide and process for preparing the same Spherical polyamide and process for preparing the same

1998-03-13

2000-10-03

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528310, 528312, 528323, C08G 6908, C08G 6904

Patent

active

061275131

ABSTRACT:
Disclosed is a process for preparing spherical polyamide having an average grain diameter of 100 .mu.m or less which comprises polymerizing monomers for preparing the polyamide under heating at a temperature higher than the melting points of the monomers and the polyamide while melting the monomers in a polymerization medium under stirring whereby dispersing the formed polyamide with fine particles in the polymerization medium and then cooling the resulting mixture.

REFERENCES:
patent: 3476711 (1969-11-01), Muller
patent: 3909498 (1975-09-01), Wolvers et al.
patent: 4694063 (1987-09-01), Hilaire et al.
patent: 5039784 (1991-08-01), Canalini
patent: 5244984 (1993-09-01), Suzuki

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